28. There are 4 blocks in the
top or first tier of a pyramid,
8 blocks in the second tier,
16 in the third tier, 32 in the
fourth tier, how many in the
12 tier?
a. 512 blocks
b. 2048 blocks
C. 4096 blocks
d. 8192 blocks

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)

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